Borderou de evaluare (job #6972)

Compilare: user.c: In function ‘main’: user.c:5:27: warning: unused variable ‘b’ [-Wunused-variable] user.c:5:23: warning: unused variable ‘a’ [-Wunused-variable] user.c:7:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]